The 909 Twins 4-inch round muffler is unique on several fronts.

First, the rear is finished with a rolled scalloped tip, not a simple slash cut.

That rolled tip is matched with an inner core finished with the same scalloped cut.

The inner tip is actually part of the constant velocity, tuned core that gives the muffler its great sound and performance.

And at only $399.95 it’s a whole lot of muffler for the price.